JetBlue will dispatch flights so as to assure that at all times the aircraft will remain within ___________ of an adequate airport.

JetBlue will dispatch flights so as to assure that at all times the aircraft will remain within ___________ of an adequate airport.

• A. 1 Hour (in still air, at single-engine normal cruise speed)
• B. 2 Hours
• C. 30 Minutes
• D. 3 Hours

Answer: (A)

The concept being tested is the safety margin built into flight dispatch to ensure a safe diversion option if something goes wrong. JetBlue aims to keep the aircraft within a defined, reachable distance from an adequate airport at all times, so there’s a guaranteed place to land in an emergency. The standard measure used is one hour of flight time, calculated at the aircraft’s single-engine normal cruise speed in still air. This creates a conservative, predictable radius that accounts for engine-out performance and ensures there is enough time to reach a suitable airport even in less-than-ideal conditions. An adequate airport means a destination with the necessary runway length, navigation, weather capability, and safety facilities to handle the airplane if a diversion becomes necessary. Why not the other options? Two hours, thirty minutes, or three hours would alter the safety cushion beyond what the dispatch framework is designed to guarantee and could either expand beyond practical diversion options or undermine the predictable, standardized planning used for OEI (one-engine-inoperative) scenarios. The one-hour standard keeps the plan consistent with established safety margins and regulatory practice.

The concept being tested is the safety margin built into flight dispatch to ensure a safe diversion option if something goes wrong. JetBlue aims to keep the aircraft within a defined, reachable distance from an adequate airport at all times, so there’s a guaranteed place to land in an emergency.

The standard measure used is one hour of flight time, calculated at the aircraft’s single-engine normal cruise speed in still air. This creates a conservative, predictable radius that accounts for engine-out performance and ensures there is enough time to reach a suitable airport even in less-than-ideal conditions. An adequate airport means a destination with the necessary runway length, navigation, weather capability, and safety facilities to handle the airplane if a diversion becomes necessary.

Why not the other options? Two hours, thirty minutes, or three hours would alter the safety cushion beyond what the dispatch framework is designed to guarantee and could either expand beyond practical diversion options or undermine the predictable, standardized planning used for OEI (one-engine-inoperative) scenarios. The one-hour standard keeps the plan consistent with established safety margins and regulatory practice.